687675985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{883}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 882161280

約数和(自身を除く): 194485295

約数列:

[1, 5, 29, 41, 131, 145, 205, 655, 883, 1189, 3799, 4415, 5371, 5945, 18995, 25607, 26855, 36203, 115673, 128035, 155759, 181015, 578365, 778795, 1049887, 3354517, 4742593, 5249435, 16772585, 23712965, 137535197, 687675985]

約数ペア:

[(1, 687675985), (5, 137535197), (29, 23712965), (41, 16772585), (131, 5249435), (145, 4742593), (205, 3354517), (655, 1049887), (883, 778795), (1189, 578365), (3799, 181015), (4415, 155759), (5371, 128035), (5945, 115673), (18995, 36203), (25607, 26855)]